Results 41 to 50 of about 136,601 (340)
Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation
Advanced Functional Materials, EarlyView.A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng +7 more
wiley +1 more source
Charge-coupled device data processor for an airborne imaging radar system [PDF]
, 1977 Processing of raw analog echo data from synthetic aperture radar receiver into images on board an airborne radar platform is discussed. Processing is made feasible by utilizing charge-coupled devices (CCD).
Arens, W. E.
core +1 more source
Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]
, 2010 We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas +5 more
core +1 more source
A Robust Dual‐mode Self‐Monitoring Battery Thermal Management System via Bilayer Structural Design
Advanced Functional Materials, EarlyView.An adaptive dual‐mode material capable of both evaporative cooling and photothermal preheating is developed. It achieves a cooling efficiency of 53.9%, surpassing existing evaporative cooling counterparts, and a self‐monitoring capability, making it ideal for electric vehicles, portable electronics, and grid‐scale energy storage.
Shanchi Wang +7 more
wiley +1 more source
Sensors, 2023 In the process of using the Distributed Radar Network Localization System (DRNLS) further to improve the survivability of a carrier platform, the random characteristics of the system’s Aperture Resource Allocation (ARA) and Radar Cross Section (RCS) are ...
Chenyan Xue, Ling Wang, Daiyin Zhu
doaj +1 more source
Normalization and interpretation of radar images [PDF]
IEEE Transactions on Antennas and Propagation, 1998 Calibrated radar images are often quantified as radar cross sections. This interpretation, which is not strictly correct, can lead to misunderstanding of test target scattering properties. To avoid confusion, we recommend that a term such as "scattering brightness" defined in the present paper be adopted as a standard label for image-domain data.
Skinner, J. P. +4 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Ultra‐short pulsed laser processing (ULSP) enables scalable, open‐air fabrication of self‐organized, quasi‐periodic micro/nanostructures on copper using 100 µm laser beams, orders of magnitude larger than the resulting surface features. Integrated into ultra‐thin, wick‐free vapor chambers, these laser‐functionalized surfaces dramatically enhance ...
Anish Pal +7 more
wiley +1 more source
IEEE Access, 2019 Microwave photonic channelizer based on coherent frequency combs (OFCs) enables processing of ultra-wideband RF signals using low-frequency components.
Chenxu Xie +3 more
doaj +1 more source
Feature-Guided SAR-to-Optical Image Translation
IEEE Access, 2020 The powerful performance of Generative Adversarial Networks (GANs) in image-to-image translation has been well demonstrated in recent years. However, most methods are focused on completing an isolated image translation task.
Jiexin Zhang, Jianjiang Zhou, Xiwen Lu
doaj +1 more source
Sparse representation-based synthetic aperture radar imaging [PDF]
, 2011 There is increasing interest in using synthetic aperture radar (SAR) images in automated target recognition and decision-making tasks. The success of such tasks depends on how well the reconstructed SAR images exhibit certain features of the underlying ...
Cetin, Mujdat +3 more
core +1 more source